Negritude Junior
type: MusicGroup
genre: pagode
genre: samba
popularity: 17
followers: 257
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0d8a0932d8098166380d0f1a28dd4f70629eee8f6345c2e39f28e8b97215846e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953778
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953778
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d350ac55-b47c-4d9b-a552-4a812c10250e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d350ac55-b47c-4d9b-a552-4a812c10250e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d350ac55-b47c-4d9b-a552-4a812c10250e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0d8a0932d8098166380d0f1a28dd4f70629eee8f6345c2e39f28e8b97215846e","name":"Negritude Junior","registered_at":"2026-06-15T02:44:43Z","symbol":"NIM0657347","token_address":"0x16bbe6c0187eabc9903cb74d1013552018e4c19b","type":"artist","uuid":"d350ac55-b47c-4d9b-a552-4a812c10250e"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8a0932d8098166380d0f1a28dd4f70629eee8f6345c2e39f28e8b97215846e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d350ac55-b47c-4d9b-a552-4a812c10250e.json and https://artists.proofprofile.net/proofs/artist/d350ac55-b47c-4d9b-a552-4a812c10250e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x0d8a0932d8098166380d0f1a28dd4f70629eee8f6345c2e39f28e8b97215846e","name":"Negritude Junior","registered_at":"2026-06-15T02:44:43Z","symbol":"NIM0657347","token_address":"0x16bbe6c0187eabc9903cb74d1013552018e4c19b","type":"artist","uuid":"d350ac55-b47c-4d9b-a552-4a812c10250e"}
album: Tanajura (Ao Vivo)
  type: MusicAlbum
  date published: 2021-04-21
album: Conto de Fadas (Ao Vivo)
  type: MusicAlbum
  date published: 2021-04-30
album: Gente da Gente (Ao Vivo)
  type: MusicAlbum
  date published: 2021-05-28
album: Eternidade, Vol. 1 (Ao Vivo)
  type: MusicAlbum
  date published: 2021-08-06
album: Eternidade, Vol. 2 (Ao Vivo)
  type: MusicAlbum
  date published: 2021-09-10